Former HarperCollins imprint editor and assistant taunting "crazy bitch" Judith Regan finally filed a $100 million defamation lawsuit against NewsCorp, HarperCollins' parent company yesterday, almost a year after she was fired for planning a certain O.J. Simpson confessional and also for alleged anti-Semitic remarks. Regan, who reportedly used to scream, "I have the biggest cock in the building" is brandishing her figurative phallus with this suit. She accuses Rupert Murdoch's NewsCorp of launching a smear campaign against her because of her affair with former Giuliani police commissioner Bernie Kerik and alleges that a "senior News Corp. executive told her he believed she had information about Kerik that could hurt Giuliani's campaign and she should lie to federal investigators."